Neither Muslims nor anyone else truly worships the true God if they reject Jesus as he really is in the Gospels.
John PiperThe importance of prayer rises in proportion to the importance of the things we should give up in order to pray
John Piper'Worship' is the term we use to cover all the acts of the heart and mind and body that intentionally express the infinite worth of God. This is what we were created for, as God says in Isaiah 43:7, Everyone who is called by my name, and whom I have created for my glory. That means that we were all created for the purpose of expressing the infinite worth of God's glory. We were created to worship.
John PiperGod's greatest interest is to glorify the wealth of His grace by making sinners happy in Him.
John Piper